// apre un popup

function openWin(linkdest,title){
window.open(linkdest, title, 'scrollbars=yes,menubar=no,border=0,height=600,width=750,resizable=yes,toolbar=no,location=no,status=no');
return false;
}

/* verifica che siano inseriti solo numeri */
function verif_nombre(champ)
{
var chiffres = new RegExp("[0-9\.]"); 
var verif;
var points = 0; 

for(x = 0; x < champ.value.length; x++)
{
verif = chiffres.test(champ.value.charAt(x));
if(champ.value.charAt(x) == "."){points++;} 
if(points > 1){verif = false; points = 1;} 
if(verif == false){champ.value = champ.value.substr(0,x) + champ.value.substr(x+1,champ.value.length-x+1); x--;}
}
}